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Using Phage Display to Develop Ubiquitin Variant Modulators for E3 Ligases
Published on: August 27, 2021
High-throughput profiling of posttranslational modification enzymes by phage display
1Department of Chemistry, The University of Chicago, Chicago, IL, USA.
Biotechniques
|August 19, 2007
Summary
Phage display technology enables high-throughput identification of enzyme activities. This study used phage display to map downstream targets of posttranslational modification enzymes, including phosphopantetheinyl transferase (PPTase) modifications.
Area of Science:
- Biochemistry
- Molecular Biology
- Proteomics
Background:
- Phage display is a powerful high-throughput screening tool.
- It is increasingly used to study enzyme catalytic activities.
- Posttranslational modifications (PTMs) regulate protein function.
Purpose of the Study:
- To highlight recent advancements in using phage display for PTM enzyme target identification.
- To showcase genome-wide profiling of enzymes modified by phosphopantetheinyl transferase (PPTase).
Main Methods:
- Utilizing phage display for high-throughput screening.
- Characterizing catalytic activities of PTM enzymes.
- Genome-wide profiling of enzyme substrates.
Main Results:
- Phage display successfully identified downstream targets of PTM enzymes.
- Genome-wide profiling revealed novel biosynthetic enzymes modified by PPTase.
- This approach elucidates enzyme function within complex proteomes.
Conclusions:
- Phage display is effective for profiling PTM enzyme activities and identifying their targets.
- This methodology provides a comprehensive view of enzyme function and regulation.
- The study expands our understanding of phosphopantetheinyl transferase-mediated modifications.
